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27 lines
1.0 KiB
LLVM
27 lines
1.0 KiB
LLVM
; RUN: llc < %s -mtriple=x86_64-apple-darwin -mcpu=core2 | FileCheck %s
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; rdar://7842028
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; Do not delete partially dead copy instructions.
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; %RDI<def,dead> = MOV64rr %RAX<kill>, %EDI<imp-def>
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; REP_MOVSD %ECX<imp-def,dead>, %EDI<imp-def,dead>, %ESI<imp-def,dead>, %ECX<imp-use,kill>, %EDI<imp-use,kill>, %ESI<imp-use,kill>
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%struct.F = type { %struct.FC*, i32, i32, i8, i32, i32, i32 }
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%struct.FC = type { [10 x i8], [32 x i32], %struct.FC*, i32 }
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define void @t(%struct.F* %this) nounwind {
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entry:
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; CHECK: t:
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; CHECK: addq $12, %rsi
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%BitValueArray = alloca [32 x i32], align 4
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%tmp2 = getelementptr inbounds %struct.F* %this, i64 0, i32 0
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%tmp3 = load %struct.FC** %tmp2, align 8
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%tmp4 = getelementptr inbounds %struct.FC* %tmp3, i64 0, i32 1, i64 0
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%tmp5 = bitcast [32 x i32]* %BitValueArray to i8*
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%tmp6 = bitcast i32* %tmp4 to i8*
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call void @llvm.memcpy.p0i8.p0i8.i64(i8* %tmp5, i8* %tmp6, i64 128, i32 4, i1 false)
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unreachable
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}
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declare void @llvm.memcpy.p0i8.p0i8.i64(i8* nocapture, i8* nocapture, i64, i32, i1) nounwind
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